competitive programming 8
- Binary Search
- Competitive Programming Guide for Beginners
- Codeforces Round 1037 Problem F "1-1-1, Free Tree!"
- Codeforces Round 1037 Problem E "G-C-D, Unlucky!"
- Codeforces Round 1037 Problem D "This is the Last Time"
- Codeforces Round 1037 Problem C "I will Definitely Make It"
- Codeforces Round 1037 Problem B "No Casino in the Mountains"
- Codeforces Round 1037 Problem A "Only One Digit"